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/ˈvɑːt͡ʃɑː/ · noun
(computing, databases) A text field of indeterminate length in a database, as opposed to the traditional fixed-length field..
Be aware that varchars will in general provide slower updates but faster selects. By definition, the amount of storage they use is variable.
With a varchar, the storage is always the actual number of characters you have stored plus 2 bytes. So a varchar(20) with a 5-character word will take up 7 bytes, with the extra 2 bytes holding a size reference for SQL Server.
Use varchar2 when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Varchar2 means (computing, databases) A text field of indeterminate length in a database, as opposed to the traditional fixed-length field..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Be aware that varchars will in general provide slower updates but faster selects. By definition, the amount of storage they use is variable.
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